Sulky-cultivator.



No. 821,083. PATENTED MAY 22, 1906.

E. R. BROOKBANK.

SULKY CULTIVATOR.

APPLICATION FILED JULYI7. 1905.

4 SHEETS-SHEET 1.

No. 821,083. PATENTED MAY 22, 1906. E. R. BROOKBANK. SULKY GULTIVATOR.

APPLICATION FILED JULY 17. 1905.

4 SHEETS-SHEET 2.

w @MMM gy 04M i @EMM No. 821,083. PATENTED MAY 22, 1906.

Y E. R. BROOKBANK.

SULKY CULTIVATOR.

APPLICATION FILED JULYl?, 1905.

4 SHEETS-SHEET 3.

PATENTED MAY 22, 1906.

E. R. BROOKBANK.

SULKY CULTIVATOR.

APPLICATION FILED JUVLY 17. 1905.

4 SHEETS-SHEET 4.

UNITED -sTATEs PATENT oEEroE.

Specification of Letters Patent.

Patented May 22, 1906.

.ippiimion ne@ July 17,1905. sean No. 270,150.

To atl whom t may concern:

Be it known that I, EDWARD R. BROOK- BANK, a citizen of the United States, residin at Battle Creek, in the county of Calhoun an State of Michigan, have invented certain new and useful Improvements in Sulky-Cultivators; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same,- reference being had to the accompanying drawings, and to the marks of reference placed thereon, which form a part of this specification. l

This invention relates to cultivators; and its object is to construct awheel-cultivator in such manner that the individual gangs may be readily raised or lowered individually or collectively, as may be desired, and by the use of but one hand; whereby the gangswill under all conditions remain in a parallel position with the soil cultivated whether swung laterally or raised and lowered, or, in other words, its shovels will keep the same plane,v so that all teeth will exercise the same propensities for'cultivating; whereby the weight of the gangs will coun-terbalance the operator when lifted from the soil; whereby the shovels will have a tendency of lead to cause the same to enter the soil whether sharp or dull whereby the shovels will be released from their tendency t`o dra-w within thersoil when the motive ower is reversed; whereby the gangs may e raised very high to clear obstructions; whereby the shovels or teeth of the respective gangs will be forward of the operator and within a point of observation at all times; whereby the framework will be very compact, simple, and rigid.

Other objects and advantages will hereinafter appear from the following specification and will be particularly pointed out in the claims hereto appended.

Ithas been customary heretofore to construct wheel-cultivators, whether provided with shovels that enter the soil on the same plane or having their gangs lift from a pivot, in such manner that when motion is imparted to the same the teeth will lift and draw from the soil, and specially so if the ground is vhard or the teeth-have become blunt and dull by use. My invention overcomes-these disadvantages, as will appear from the following specification, wherein- Figure 1 represents a side View with one and the cross-piece a.

wheel removed and the gangs lowered. Fig. 2 is a side view with one wheel removed and `shows the'gangs elevated. Fig. 3 is a plan view with the gangs elevated. Fig. 4 is a perspective view of a gang. Fig. 5 is a rear view of the cultivator with the gangs lowered. Fig. 6 is a perspective view of the frame from which the gangs are supported. Fig. 7 is a detail of a hanger-box. Fig. 8 is a detail view ofa lifting-lever; and Fig. 9 is a perspective view of the lifting-levers, the lever to the right being down in the mode of lifting one of the gangs.

Like marks of reference refer to corresponding parts throughout the several views.

A represents the wheels; B, the usual u wardly-curved axle; C, the tongue; D, t e seat; E, an A-shaped main frame having a transverse rear cross-piece; F F, the shovelgangs G G, the quadrants, and` H H the adjusting-levers.

Secured to the axle B, and preferably at the upper side thereof, as shown, I attach the main frame E. This frame, by preference, is constructed from I-beam in cross-section, and its contour is A-shaped, as shown. It

-comprises the side bars a a, central transverse cross-piece a', and rear cross-bar a2, the latter of which extends slightly beyond -the side pieces. Between the forward ends of this frame the tongue C is fitted and7 as herein shown, extends to and is attached t0 the axle Crossing the tongue at a point near the forward end of the main frame a cross-bar b is bolted, and from the ends of this bar side braces b2 extend and are secured to the axle ends. Revoluble in brackets b3, bolted to theg bar b, grooved rollers c are mounted, and over these rollers chains d pass from the lifting-levers to the forward ends of the shovel-gangs, as shown in Figs. 1v and 2. As will be observed, these chains are attached to the-gangs F at their forward ends and on their respective frames in such manner that they draw thegangs, the inclinationl l,of the hangers being such that the shovels or teeth will enter the soil, even though very blunt and dull. These gang-frames may be made in any desired form requisite to the purpose and, as herein shown, comprise a rectangular rear portion having an mdrawn forward portion etween which a bracket e is fitted. This bracket to the forward end forms an eyelet for'attaching the lift-chain d, a socket for iitting a shovel or spring-toothf,

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and an upwardly-extending ball g for receiving the cup-box, of a hanger hereinafter set forth.

Within the transverse bars a and a2 ofthe main frame longitudinal slots h are formed, the bar a having two, the bar a2 having four,

' the slots being arranged in such manner that the gang-supporting brackets i may be shiftf edA to the right or to the left, as occasion may require in the adjustment of the shovelgangs, and better comprehended in Fig. 6,- the individual brackets bei g secured in place by bolts h2, also a simi ar set of ballbrackets being attached to the gang-frames and designated as g. f

, jrepresents han ers, to either end of which cup-shaped boxes are bolted, each box comthat the'hangers be of equal length, .or ap-l proximately so. The parallel arrangement of the hangers and their connection with the main frame and cultivator-gangs by ball-and socket boxes or journals permit the gangs to be swung laterally in the saine lane with the soil as well as forward and ack, in such manner that every shovel or tooth will cultivate without the rearward teeth following or trailing others, as is the case where culivator- 'gangs are pivoted from forwardly-fixed sup- .ports and swung laterally from such pivots 1n circular motion or where gangs are collapsed or swung together on pivotal connections from a central draw-bar.

That the gangs may be adjusted either individually or collectively, I provide a series of levers H H, arranged at 'one side of the driversseat: These levers are' o erated from the same axis, the lever to the efto erating the rod orv axle g, the lever to`t e right ojlerating on an extremity of said axle to the rig t. (Better compreliended in Fig. 9.)

The free extremities Z of the levers lie very closely together when in a normal position and may e grasped in union when 1t is desired to elevate the gangs simultaneously. Each lever has a vertical hand-grip l and a right-angular hand-grip m, below which is fitted the usual latch n and spring-adjusting dog o, the latterof which is adapted to en'- gage a slot p near the base of the uadrant G to secure the shovel-gangs in an e evated position, an adjustable pin p passing through holes near the rearward pitch of the quadrants, acting as a'bar, preventing the levers from passing a predetermined point. The

lever to the left is attached to a rod g, having a crank r, to which the left-hand shovel-gang is attached through the medium of a liftingchain d. The lever to the right has a curved extension r', this extension and the crank r being identical in shape. The chain inthe vlatter case 1`s pivoted directly to the lever, as f lver will strike the chain in such manner as will accelerate the movement of the same and lift the gang speedily and high.' The,

first movement of the chains is slow and of short purchase for the purpose of affording the operative sufficient leverage to lift the shovels from the soil.

From the foregoin description, taken in -connection with the rawings, ,it will be seen to such changes as would be compatible with my invention.

Having, therefore, descrlbed my inventlon,

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what I claim as new, and: desire to secure by Letters Patent, is- I 1. In a cultivator, the combination with the main frame, of shovel-gangssuspended therefrom by forwardly-inclined parallelarranged hangers from pivotal journals capable of retaining said angs in the same plane when raised, lowere or laterally disposed, each gang being provided with triple hangers, oneat the forward end and two at or near the rear extremity of the respective gangs, levers to raise or lower said gangs, grooved rollers mounted at the forward' end of said frame and chains trained over said 'rollers and connected at their ends with said levers and angs, respectively, substantially as, and for t e purpose set forth.

2. In a cultivator, the combination with the main frame, of shovel-gangs suspended therefrom by forwardly-inclined parallelarranged hangersh having ball-and-socket joints both at their connection with the nlain frame `and also with the respective gangs, so that when the gangs are raised, lowered, or laterally disposed,'tl1e gangs will retain the same plane, levers tov raise or lower said gangs, grooved rollers mounted at the forward end of said frame and chains trained .IIC

ing the tongue at their forward ends andspread 'at their rear extremities, a cross-piece lntersecting sa1d slde pleces forward of the axle and a cross-plece secured to the extremities of said sidel pieces extending beyond their ends at the rear of the axle, longitudinal slots within said cross-pieces, and hanger-brackets bolted to said cross-pieces atthe intersection of said slots, substantially as, and for the purpose set forth.

4.. In a cultivator, the combination with the main frame, of a cross-piece forward of the axle a cross-piece to the rear of the axle,

longitudinal slots in said cross-pieces, hangerbrackets bolted to said cross-pieces at the intersection of said slots, parallel-arranged hangers suspended from said brackets in a forwardly-inclined position, shovel-gangs suspended from said hangers, a cross-piece' attached to the forward end of the frame, grooved rollers mounted on ysaid crosspiece, chains passing over said rollers and connectively united to the forward `end of said gangs, their opposite ends being attached to adjusting-levers, substantially as, and for the purpose set forth.

5. In a cultivator, a quadrant mounted thereon, a lever pivotally operative from said quadrant, of a curved extension to said lever terminatin a fork, a lift-chain pivoted near the axis or pivot of Said lever and passing over a grooved roller at the forward end of the cultivator and attached to the forward end of a shovel-gang, the pivotal connection of the chain with the lever acting asa leverage to start the shovel-gang from the soil, the

curved extension acting to accelerate the movement of the shovel-gang when the chain is engaged therewith, substantially as, and for the purpose set forth.

EDWARD R. BROOKBANK.

Witnesses: l

GEO. J. SHARPs, H. F. WINGATE. 

